2020 GLS stuck in update mode






I tried pulling a couple of the radio/navigation fuses, but it comes back to the update screen every time.


Trending Topics
The Best of Mercedes & AMG
Have you tried holding the volume button? Someone suggested this in another thread but I remember this working for iDrive on BMW!










I had downloaded all the maps onto a thumb drive, and inserted it in the car. It takes a little bit for the car to respond, and while I was waiting a similar pop-up appeared and I said okay.
It seemed to take precedence over the map update and got stuck unresponsive.
I didn't do anything but it was dead until the next day.
At which time the pop-up download had completed, and I reinserted the map update which then took place. Successfully. (I had removed the thumb drive overnight.)
Maybe you're download interrupted some other activity.
Last edited by mikapen; Jul 27, 2024 at 02:15 AM.


I had downloaded all the maps onto a thumb drive, and inserted it in the car. It takes a little bit for the car to respond, and while I was waiting a similar pop-up appeared and I said okay.
It seemed to take precedence over the map update and got stuck unresponsive.
I didn't do anything but it was dead until the next day.
At which time the pop-up download had completed, and I reinserted the map update which then took place. Successfully. (I had removed the thumb drive overnight.)
Maybe you're download interrupted some other activity.
Last edited by amelen; Jul 27, 2024 at 08:24 AM.


Last edited by amelen; Jul 27, 2024 at 10:53 AM.






Page 335 of my manual talks about all the things that can go wrong with a software update. Including suggesting driving carefully to a dealer. I would say go to a dealer. Worry about the payment later. This is a failure on the car and a safety issue. MB will work with you.


Page 335 of my manual talks about all the things that can go wrong with a software update. Including suggesting driving carefully to a dealer. I would say go to a dealer. Worry about the payment later. This is a failure on the car and a safety issue. MB will work with you.
I agree, however, local dealers are all quoting crazy amounts just to "diagnose". I'm worried that they'll charge me thousands just for showing up (or at least that's what MB of Paramus is saying). Maybe I should try reaching out to MB CS first since the dealers all just want to rip me off at this point. This is our 4th Mercedes too, and all serviced regularly with MB of Paramus.




I agree, however, local dealers are all quoting crazy amounts just to "diagnose". I'm worried that they'll charge me thousands just for showing up (or at least that's what MB of Paramus is saying). Maybe I should try reaching out to MB CS first since the dealers all just want to rip me off at this point. This is our 4th Mercedes too, and all serviced regularly with MB of Paramus.


"Don’t know what a crazy amount is." -> $400 diagnostic fee that is not covered even if MB decides to cover the rest of the work under warranty.





